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Post by phineas7 on Feb 16, 2011 12:59:49 GMT -5
I've read some that say that you get excessive blow back in your face with DI, and others that say it causes issues with the piston system, and others that say it doesn't.
What's your experience?
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Post by jwp6114usmc on Feb 16, 2011 14:59:50 GMT -5
Have ran a Surefire suppressor on both 10" gas and 10" piston 5.56 SBR's, have not had any negative issues from either. Also running a 9mm suppressor on a 7" Blow back operated RRA 9mm AR.
Of all the above mentioned systems I would say the Blow back 9mm is the worst with excess gasses blowing back around the chamber area, with both of the 5.56 gas and piston systems there is enough delay in chamber opening to allow 95% of the gas to escape twards the muzzle.
Gas pressure in the chamber area is slightly increased on 5.56 AR's but it is not enough to bother most shooters, Also look into a Gas Buster charging handle or any other brand that creates a better seal around the back of the upper receiver to eliminate gas escaping around the charging handle (and your nose).
Some of the newer Piston AR's even have a suppressed setting on the piston block that reduces (or even shuts off) gas to the piston block.
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Post by leeboat on Feb 17, 2011 10:43:33 GMT -5
What Jake says is true. The Gasbuster charging handle helps quite a bit. In my experience the piston rifle does decrease the gases coming back to the shooter. Also if you are shooting indoors this will be more noticable.
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Post by phineas7 on Feb 17, 2011 10:55:59 GMT -5
At the moment, I don't ever shoot indoors. I'm unsure about the whole piston vs di arguments.
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Post by jwp6114usmc on Feb 18, 2011 7:13:14 GMT -5
Suppressed or un-suppressed I don't notice much difference,
The biggest advantage of a piston gun is its superior realiabilty of function in adverse conditions and for a verry high volume of use between detailed cleanings.
I run both and IMO the piston gun is easier to clean, and will run longer in between cleanings. The gas guns run just fine. If you compare ammo to ammo, I.E. run the same ammo in both systems, you will find that if you run a clean burning ammo both guns will run a long time, if you run dirty ammo like wolf the DI gun will slow down sooner (mabey after 600 to 800 rnds)
the catch is even if you run wolf ammo, most shooters do not shoot enough volume to notice any sluggish performance from DI gun,
Leeboat can attest, I do not clean my guns very often and I am a high volume shooter and I rarely run into an issue with either platform with malfunction due to dirty ammo, and yes I DO shoot a lot of Wolf ammo.
I love to hear people say "that stuff is bad for your gun" I just laugh, Altough some firearm manufactures discurage the use of wolf.
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